Process of obtaining milk-sugar.



UNITED- STATES PATENT OFFICE; I l

JOHN A. JUST, OF SYRACUSE, NEW'YORK.

PROCESS OBTAINING liHLK-SUGAR.

To all whom it may concern:

Be it known that I, LionN A. JUsr, a citizen of the United States, and a resident of Syracuse, New York, haye inyented certain new and n set'ul Improvements in Processes of Obtaining Milk-Sugar, of which the following is a specification.

This invention relates to a process of obtaining milk sugar from whey and other crude milk sugar solutions, and in order to carryout the process in the best manner the following mode of procedure should be substantially followed. f

Mix the whey or crude milk sugar solution with infusorial earth (silica). talc, asbestos or other similar mineral absorbent to form a magma and quickly dry the mixture on a hot surface so constructed as to make a continuous operation, as for instance, a revolving cylinder suitably heated to expel the water from the mixture, but not heated sufficiently to decompose the product (milk sugar). 'Suflicieni earth is added to bring the mass to a consistency which will pass ojvcr the heated surface in a film. The him may be more or less thick as desired,-and the consistency of the mixture may be that of a creamy paste. The albumen will be coagulated by this treatment, the lat absorbed by the.mineral matter and the sugar will be dried quickly. On leaching the dry shavings like product a clear and nearly pure milk sugar solution obtained at once, because the albumen and the lat which have been absorbed by the earth are held back by it and will be insoluble in the water. The solution of sugar requires but little further attention to purify it and it iinally crystallizes as pure milk sugar from a. suitably concentrated solution. The solution so formed of the milksugar may also be precipitated with alcohol or purili t-d by any known method. Alcohol if used may be recovered for re-use. The inert mineral matter-is also recovered for re-use by calcining and burning out the organic matter or used for refining impure sugar solution since it acts like animal charcoal on such solutions.

Milk sugar compounds of potassium. sodium, or similar alkaline bases may be formed in the solution, the salt thus formed leached and the solution precipitated with CO which decomposes the compound and the milk sugar precipitated by alcohol. This removes the albumen and fat completely.

The described methods gi\ a milk sugar freeironr fat and albumen and therefore of excellent keeping Specification of Letters Patent. Application filed November 21,1906. Serial No. 34 4 853.

from this solution.

Patented Oct. 16, 190?.

albumen, which is taken lip by themineral matter and held back during the subsequent solution. of the milksugar.

I claim and desire to obtain by Letters Patent the following:. I

1. In the manufacture of milk sugar preparations. ihe process which comprises mixing a crude milk sugar solution with a mlnernl'ubsorbent to form n mngninfdrylng the.; magma to exp'el water and render impurities insoluble. andhleaching the dried material to form n purer milk sugar so'lvtion. I

The process of preparing pure milk sugar \\'hi cb eonslsts in mixing a crude milk sugar solution with a mineral absorbent to form n magma. drying the magma torxpel water and render impurities insoluble. leaching the ,drled material to form n purer milk sugnr solutlonnnd recoverin: the milk sugar from this solution.

It. The process of preparing pure milk sugar which eon-j slsts in mixing :1 crude milk sugar solution with a min i absorbent to form a magma, drying the magmato e. el' water and render impurities insoluble. leaching the 8O material to form n purer milk sugar solution and rec inc: the milksngnr from this solution by cnncentrution und crystallization.

4. The process of preparing pure milk sugar which con: sis-is in mixing: a crude milk sugar solution withplnfusbriul earth to form a magma. quickly drying this magma to expel water and render impurities insoluble. leaching the driedmaterial to form n purer milk siignr solution-and recove1 in: the milk sugar from this solution.

5. The processor preparing pure milk sugar which coir slsts in mixing a crude milk sugar solution with a mineral nhsorbentto form a magma. converting this magma into a him and quickly drying to expel writer and. render inipurities insoluble. leaching the dried material to form ii purer milk sugar solution and recoveringihe milk sugm: 95

in the presence of two subscribing witnesses. v

JOHN .lliSl.

in testimony whereof I have signed this "specification Witnesses:

()mx A. Fos'rnu, A. ii. SonNmm-m. 

